Home / 319,553.45-441,143.56-198,733.66

Finding the Fourth Proportional to 319,553.45, 441,143.56 and 198,733.66

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Solution

The fourth proportional to 319,553.45, 441,143.56 and 198,733.66 is: 274,351.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,553.45 : 441,143.56 = 198,733.66 : x
  2. Step 2: Convert to fraction form
    319,553.45/441,143.56 = 198,733.66/x
  3. Step 3: Cross multiply
    319,553.45x = 441,143.56 × 198,733.66
  4. Step 4: Simplify right side
    319,553.45x = 87,670,071,561.68
  5. Step 5: Solve for x
    x = 87,670,071,561.68/319,553.45
  6. Step 6: Final answer
    x = 274,351.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.